Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
ANALYSIS OF THE AEROACOUSTIC BEHAVIOR OF A SIROCCO FAN
Submission Author:
Marcos André de Oliveira , MG
Co-Authors:
Ramiro Gustavo Camacho, Marcos André de Oliveira, Daniel Oliveira Silva, Pâmela Badessa Maia, Alexandre Carvalho, Pietro Olegário Da Silva , Adson dos Santos Silva Junior, Bernardo Lamin, Luis Filipe de Almeida Roque
Presenter: Ramiro Gustavo Camacho
doi://10.26678/ABCM.ENCIT2020.CIT20-0684
Abstract
The fan design must cover the interaction between its aerodynamic and aeroacoustic characteristics, as the noise is intensely related to the flow field and the performance of the fan. In general, the aim is to increase efficiency, control noise and reduce the size of the machine. However, it is of scientific and industrial interest to clarify more about how to estimate the noise source by visualizing the internal flow of fans or how to define the relationship between design parameters and noise using computational fluid dynamics. The purpose of this paper is to present the aeroacoustic response of a Sirocco fan, considering its behavior in 3D for various operational conditions. For the numerical simulations, the Finite Volume Method was used to discretize the Navier-Stokes equations, for pressure-velocity coupling the SIMPLE algorithm was used for. The k-ω / SST standard model was applied for to determine the eddy viscosity intensity. The analyzes which were carried out using commercial software ANSYS Fluent®. Among the main results obtained, we highlight the survey of the characteristic of the sirocco, establishment of the internal flow velocity and pressure fields for operational conditions of interest, as well as the acoustic power distribution in the 3D domain.
Keywords
Turbulence, Aeroacoustic, aerodynamic, CFD, Sirocco Fan
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